From a7c02c770dea8cbb11706ffee8579c402c3768e6 Mon Sep 17 00:00:00 2001
From: SomberNight <somber.night@protonmail.com>
Date: Fri, 13 Mar 2020 18:07:05 +0100
Subject: [PATCH] follow-up prev: network.interface might be None

---
 electrum/network.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/electrum/network.py b/electrum/network.py
index b624b49f7..2a2d3e181 100644
--- a/electrum/network.py
+++ b/electrum/network.py
@@ -298,7 +298,7 @@ class Network(Logger):
         self.server_retry_time = time.time()
         self.nodes_retry_time = time.time()
         # the main server we are currently communicating with
-        self.interface = None  # type: Interface
+        self.interface = None  # type: Optional[Interface]
         self.default_server_changed_event = asyncio.Event()
         # set of servers we have an ongoing connection with
         self.interfaces = {}  # type: Dict[str, Interface]
@@ -516,6 +516,8 @@ class Network(Logger):
                         continue
                 return out
         else:
+            if not self.interface:
+                return {}
             return self.interface.fee_estimates_eta
 
     def update_fee_estimates(self):